Celestial's Particle is a material dropped from the Dungeon Guardian.
It's used in crafting any 2 of the Celestial Fragments and many other things in the mod itself.
On Normal mode, the Dungeon Guardian will drop 20-30 Particles.
When on Expert mode, it will drop 40-50 Particles.
This item was previously called Emagled Fragmentation before it got renamed into Celestial's Particle.